2) Add tests for payload3
3) Change the contract API for payload3 so that the destination is the appId instead of the app address
and no longer part of the data
4) add a testApp into devnet
* algo/tests: enable relayer test
* algo/tests: increase timeout
* algo/tests: split tests into unit and integration
* algo/tests: move tests around
* algo/tests: remove file
* algo/tests: make it not optimize in dev mode @ gusc1a-ossdev-jsl5
* algo/tests: another test fix @ gusc1a-ossdev-jsl5
Co-authored-by: Josh Siegel <jsiegel@jumptrading.com>